/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 22:29:21,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 22:29:21,619 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 22:29:21,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 22:29:21,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 22:29:21,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 22:29:21,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 22:29:21,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 22:29:21,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 22:29:21,654 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 22:29:21,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 22:29:21,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 22:29:21,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 22:29:21,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 22:29:21,657 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 22:29:21,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 22:29:21,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 22:29:21,658 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 22:29:21,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 22:29:21,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 22:29:21,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 22:29:21,660 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 22:29:21,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 22:29:21,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 22:29:21,660 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 22:29:21,660 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 22:29:21,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 22:29:21,661 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 22:29:21,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 22:29:21,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 22:29:21,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 22:29:21,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 22:29:21,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:29:21,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 22:29:21,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 22:29:21,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 22:29:21,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 22:29:21,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 22:29:21,664 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 22:29:21,664 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 22:29:21,664 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 22:29:21,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 22:29:21,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 22:29:21,665 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 22:29:21,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 22:29:21,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 22:29:21,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 22:29:21,919 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 22:29:21,919 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 22:29:21,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i [2023-12-20 22:29:23,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 22:29:23,235 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 22:29:23,236 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i [2023-12-20 22:29:23,242 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8e5d958/b068a464882844ee93f3297aae6f9ddf/FLAG1f260d3b6 [2023-12-20 22:29:23,254 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8e5d958/b068a464882844ee93f3297aae6f9ddf [2023-12-20 22:29:23,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 22:29:23,258 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 22:29:23,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 22:29:23,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 22:29:23,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 22:29:23,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5e82b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23, skipping insertion in model container [2023-12-20 22:29:23,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,299 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 22:29:23,448 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i[916,929] [2023-12-20 22:29:23,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:29:23,499 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 22:29:23,508 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-96.i[916,929] [2023-12-20 22:29:23,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:29:23,537 INFO L206 MainTranslator]: Completed translation [2023-12-20 22:29:23,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23 WrapperNode [2023-12-20 22:29:23,537 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 22:29:23,538 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 22:29:23,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 22:29:23,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 22:29:23,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,579 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2023-12-20 22:29:23,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 22:29:23,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 22:29:23,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 22:29:23,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 22:29:23,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,617 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 22:29:23,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 22:29:23,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 22:29:23,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 22:29:23,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 22:29:23,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (1/1) ... [2023-12-20 22:29:23,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:29:23,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:29:23,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 22:29:23,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 22:29:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 22:29:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 22:29:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 22:29:23,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 22:29:23,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 22:29:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 22:29:23,800 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 22:29:23,802 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 22:29:24,061 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 22:29:24,092 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 22:29:24,092 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 22:29:24,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:29:24 BoogieIcfgContainer [2023-12-20 22:29:24,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 22:29:24,095 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 22:29:24,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 22:29:24,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 22:29:24,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 10:29:23" (1/3) ... [2023-12-20 22:29:24,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef1a503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:29:24, skipping insertion in model container [2023-12-20 22:29:24,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:29:23" (2/3) ... [2023-12-20 22:29:24,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef1a503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:29:24, skipping insertion in model container [2023-12-20 22:29:24,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:29:24" (3/3) ... [2023-12-20 22:29:24,100 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-96.i [2023-12-20 22:29:24,114 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 22:29:24,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 22:29:24,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 22:29:24,161 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1dc51f94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 22:29:24,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 22:29:24,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-20 22:29:24,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 22:29:24,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:29:24,179 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:29:24,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:29:24,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:29:24,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1898360507, now seen corresponding path program 1 times [2023-12-20 22:29:24,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:29:24,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807963403] [2023-12-20 22:29:24,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:29:24,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:29:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:29:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:29:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:29:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:29:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:29:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:29:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:29:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 22:29:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:29:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 22:29:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:29:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 22:29:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:29:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 22:29:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:29:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 22:29:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 22:29:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 22:29:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:24,573 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-20 22:29:24,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:29:24,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807963403] [2023-12-20 22:29:24,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807963403] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:29:24,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:29:24,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 22:29:24,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16124420] [2023-12-20 22:29:24,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:29:24,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 22:29:24,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:29:24,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 22:29:24,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:29:24,613 INFO L87 Difference]: Start difference. First operand has 48 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-20 22:29:24,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:29:24,660 INFO L93 Difference]: Finished difference Result 93 states and 164 transitions. [2023-12-20 22:29:24,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 22:29:24,663 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 109 [2023-12-20 22:29:24,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:29:24,669 INFO L225 Difference]: With dead ends: 93 [2023-12-20 22:29:24,670 INFO L226 Difference]: Without dead ends: 46 [2023-12-20 22:29:24,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:29:24,676 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 22:29:24,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:29:24,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-20 22:29:24,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-12-20 22:29:24,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-20 22:29:24,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions. [2023-12-20 22:29:24,721 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 109 [2023-12-20 22:29:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:29:24,722 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 69 transitions. [2023-12-20 22:29:24,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-20 22:29:24,723 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2023-12-20 22:29:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 22:29:24,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:29:24,726 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:29:24,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 22:29:24,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:29:24,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:29:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash 2022651909, now seen corresponding path program 1 times [2023-12-20 22:29:24,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:29:24,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323716062] [2023-12-20 22:29:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:29:24,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:29:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:29:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:29:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:29:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:29:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:29:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:29:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:29:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 22:29:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:29:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 22:29:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:29:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 22:29:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:29:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 22:29:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:29:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 22:29:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 22:29:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 22:29:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-20 22:29:26,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:29:26,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323716062] [2023-12-20 22:29:26,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323716062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:29:26,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:29:26,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 22:29:26,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698535692] [2023-12-20 22:29:26,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:29:26,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 22:29:26,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:29:26,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 22:29:26,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-20 22:29:26,859 INFO L87 Difference]: Start difference. First operand 46 states and 69 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-20 22:29:27,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:29:27,043 INFO L93 Difference]: Finished difference Result 110 states and 163 transitions. [2023-12-20 22:29:27,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 22:29:27,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 109 [2023-12-20 22:29:27,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:29:27,047 INFO L225 Difference]: With dead ends: 110 [2023-12-20 22:29:27,047 INFO L226 Difference]: Without dead ends: 65 [2023-12-20 22:29:27,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-20 22:29:27,051 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 19 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 22:29:27,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 233 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 22:29:27,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-12-20 22:29:27,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 54. [2023-12-20 22:29:27,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-20 22:29:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2023-12-20 22:29:27,072 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 109 [2023-12-20 22:29:27,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:29:27,074 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2023-12-20 22:29:27,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-20 22:29:27,075 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2023-12-20 22:29:27,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 22:29:27,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:29:27,081 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:29:27,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 22:29:27,081 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:29:27,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:29:27,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1462968761, now seen corresponding path program 1 times [2023-12-20 22:29:27,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:29:27,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677485297] [2023-12-20 22:29:27,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:29:27,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:29:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:29:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:29:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:29:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:29:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:29:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:29:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:29:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 22:29:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:29:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 22:29:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:29:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 22:29:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:29:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 22:29:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:29:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 22:29:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 22:29:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 22:29:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:27,299 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-20 22:29:27,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:29:27,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677485297] [2023-12-20 22:29:27,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677485297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:29:27,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:29:27,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 22:29:27,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707697747] [2023-12-20 22:29:27,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:29:27,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 22:29:27,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:29:27,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 22:29:27,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 22:29:27,309 INFO L87 Difference]: Start difference. First operand 54 states and 80 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-20 22:29:27,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:29:27,399 INFO L93 Difference]: Finished difference Result 162 states and 237 transitions. [2023-12-20 22:29:27,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 22:29:27,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 109 [2023-12-20 22:29:27,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:29:27,401 INFO L225 Difference]: With dead ends: 162 [2023-12-20 22:29:27,401 INFO L226 Difference]: Without dead ends: 109 [2023-12-20 22:29:27,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 22:29:27,403 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 55 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 22:29:27,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 189 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 22:29:27,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-20 22:29:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 100. [2023-12-20 22:29:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 61 states have internal predecessors, (76), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-20 22:29:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 148 transitions. [2023-12-20 22:29:27,417 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 148 transitions. Word has length 109 [2023-12-20 22:29:27,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:29:27,417 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 148 transitions. [2023-12-20 22:29:27,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-20 22:29:27,417 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 148 transitions. [2023-12-20 22:29:27,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 22:29:27,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:29:27,419 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:29:27,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 22:29:27,419 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:29:27,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:29:27,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1417779193, now seen corresponding path program 1 times [2023-12-20 22:29:27,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:29:27,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065953532] [2023-12-20 22:29:27,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:29:27,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:29:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:29:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:29:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:29:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:29:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:29:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:29:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:29:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 22:29:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:29:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 22:29:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:29:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 22:29:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:29:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 22:29:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:29:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 22:29:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 22:29:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 22:29:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-20 22:29:29,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:29:29,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065953532] [2023-12-20 22:29:29,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065953532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:29:29,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:29:29,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 22:29:29,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719953835] [2023-12-20 22:29:29,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:29:29,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 22:29:29,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:29:29,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 22:29:29,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 22:29:29,102 INFO L87 Difference]: Start difference. First operand 100 states and 148 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-20 22:29:29,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:29:29,229 INFO L93 Difference]: Finished difference Result 205 states and 302 transitions. [2023-12-20 22:29:29,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 22:29:29,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 110 [2023-12-20 22:29:29,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:29:29,234 INFO L225 Difference]: With dead ends: 205 [2023-12-20 22:29:29,234 INFO L226 Difference]: Without dead ends: 106 [2023-12-20 22:29:29,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-20 22:29:29,242 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 9 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 22:29:29,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 217 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 22:29:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-20 22:29:29,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 95. [2023-12-20 22:29:29,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 56 states have internal predecessors, (68), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-20 22:29:29,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 140 transitions. [2023-12-20 22:29:29,257 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 140 transitions. Word has length 110 [2023-12-20 22:29:29,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:29:29,258 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 140 transitions. [2023-12-20 22:29:29,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-20 22:29:29,258 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 140 transitions. [2023-12-20 22:29:29,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-20 22:29:29,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:29:29,261 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:29:29,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 22:29:29,261 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:29:29,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:29:29,261 INFO L85 PathProgramCache]: Analyzing trace with hash -914970014, now seen corresponding path program 1 times [2023-12-20 22:29:29,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:29:29,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832642727] [2023-12-20 22:29:29,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:29:29,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:29:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:29:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:29:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:29:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:29:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:29:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:29:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:29:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 22:29:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:29:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 22:29:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:29:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 22:29:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:29:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 22:29:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:29:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 22:29:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 22:29:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 22:29:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 22:29:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 22:29:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 22:29:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-20 22:29:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-20 22:29:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 22:29:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 22:29:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 22:29:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 22:29:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 22:29:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 22:29:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 22:29:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 22:29:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 22:29:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 22:29:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-20 22:29:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 22:29:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 22:29:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2555 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2549 trivial. 0 not checked. [2023-12-20 22:29:31,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:29:31,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832642727] [2023-12-20 22:29:31,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832642727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:29:31,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:29:31,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 22:29:31,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651428426] [2023-12-20 22:29:31,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:29:31,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 22:29:31,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:29:31,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 22:29:31,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-20 22:29:31,251 INFO L87 Difference]: Start difference. First operand 95 states and 140 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-20 22:29:31,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:29:31,416 INFO L93 Difference]: Finished difference Result 156 states and 229 transitions. [2023-12-20 22:29:31,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 22:29:31,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 219 [2023-12-20 22:29:31,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:29:31,419 INFO L225 Difference]: With dead ends: 156 [2023-12-20 22:29:31,419 INFO L226 Difference]: Without dead ends: 103 [2023-12-20 22:29:31,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-20 22:29:31,420 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 19 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 22:29:31,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 238 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 22:29:31,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-20 22:29:31,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2023-12-20 22:29:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 55 states have (on average 1.2) internal successors, (66), 55 states have internal predecessors, (66), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-20 22:29:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 138 transitions. [2023-12-20 22:29:31,452 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 138 transitions. Word has length 219 [2023-12-20 22:29:31,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:29:31,455 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 138 transitions. [2023-12-20 22:29:31,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-20 22:29:31,456 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 138 transitions. [2023-12-20 22:29:31,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-20 22:29:31,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:29:31,460 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:29:31,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 22:29:31,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:29:31,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:29:31,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2005221706, now seen corresponding path program 1 times [2023-12-20 22:29:31,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:29:31,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909654874] [2023-12-20 22:29:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:29:31,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:29:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:29:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:29:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:29:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:29:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:29:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:29:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:29:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 22:29:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:29:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 22:29:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:29:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 22:29:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:29:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 22:29:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:29:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 22:29:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 22:29:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 22:29:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 22:29:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 22:29:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 22:29:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-20 22:29:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-20 22:29:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 22:29:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 22:29:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 22:29:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-20 22:29:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 22:29:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-20 22:29:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 22:29:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 22:29:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 22:29:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 22:29:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-20 22:29:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 22:29:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 22:29:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-12-20 22:29:32,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:29:32,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909654874] [2023-12-20 22:29:32,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909654874] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 22:29:32,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096493954] [2023-12-20 22:29:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:29:32,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:29:32,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:29:32,910 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 22:29:32,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 22:29:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:29:33,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 22:29:33,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:40:50,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 1331 proven. 1 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2023-12-20 22:40:50,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-20 22:43:54,126 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 22:43:54,127 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 22:43:54,127 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 22:43:54,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 22:43:54,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-20 22:43:54,334 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 221 with TraceHistMax 36,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-44-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-3-2-1 context. [2023-12-20 22:43:54,338 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-20 22:43:54,340 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 22:43:54,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 10:43:54 BoogieIcfgContainer [2023-12-20 22:43:54,343 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 22:43:54,346 INFO L158 Benchmark]: Toolchain (without parser) took 871088.16ms. Allocated memory was 196.1MB in the beginning and 1.0GB in the end (delta: 831.5MB). Free memory was 151.8MB in the beginning and 634.8MB in the end (delta: -483.0MB). Peak memory consumption was 613.5MB. Max. memory is 8.0GB. [2023-12-20 22:43:54,347 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 196.1MB. Free memory is still 153.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 22:43:54,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.47ms. Allocated memory is still 196.1MB. Free memory was 151.6MB in the beginning and 138.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-20 22:43:54,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.04ms. Allocated memory is still 196.1MB. Free memory was 138.7MB in the beginning and 135.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 22:43:54,348 INFO L158 Benchmark]: Boogie Preprocessor took 49.64ms. Allocated memory is still 196.1MB. Free memory was 135.9MB in the beginning and 132.0MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-20 22:43:54,348 INFO L158 Benchmark]: RCFGBuilder took 462.21ms. Allocated memory was 196.1MB in the beginning and 267.4MB in the end (delta: 71.3MB). Free memory was 132.0MB in the beginning and 237.8MB in the end (delta: -105.8MB). Peak memory consumption was 19.2MB. Max. memory is 8.0GB. [2023-12-20 22:43:54,348 INFO L158 Benchmark]: TraceAbstraction took 870250.68ms. Allocated memory was 267.4MB in the beginning and 1.0GB in the end (delta: 760.2MB). Free memory was 237.3MB in the beginning and 634.8MB in the end (delta: -397.5MB). Peak memory consumption was 626.9MB. Max. memory is 8.0GB. [2023-12-20 22:43:54,350 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 196.1MB. Free memory is still 153.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 277.47ms. Allocated memory is still 196.1MB. Free memory was 151.6MB in the beginning and 138.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.04ms. Allocated memory is still 196.1MB. Free memory was 138.7MB in the beginning and 135.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.64ms. Allocated memory is still 196.1MB. Free memory was 135.9MB in the beginning and 132.0MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 462.21ms. Allocated memory was 196.1MB in the beginning and 267.4MB in the end (delta: 71.3MB). Free memory was 132.0MB in the beginning and 237.8MB in the end (delta: -105.8MB). Peak memory consumption was 19.2MB. Max. memory is 8.0GB. * TraceAbstraction took 870250.68ms. Allocated memory was 267.4MB in the beginning and 1.0GB in the end (delta: 760.2MB). Free memory was 237.3MB in the beginning and 634.8MB in the end (delta: -397.5MB). Peak memory consumption was 626.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 221 with TraceHistMax 36,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-44-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-3-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 870.2s, OverallIterations: 6, TraceHistogramMax: 36, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 943 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 623 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 241 IncrementalHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 320 mSDtfsCounter, 241 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=3, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 656 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 651 ConstructedInterpolants, 0 QuantifiedInterpolants, 1739 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 5003/5003 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown